﻿using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication4
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        private SqlHelper sqlHelper = new SqlHelper();

        protected void Page_Load(object sender, EventArgs e)
        {
           
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string name = TextBox1.Text;
            string pwd = TextBox2.Text;
            string constr = "Data Source=LAPTOP-D4R08UGL;Initial Catalog=Student_db;Integrate Security=ture";
            SqlConnection con = new SqlConnection(constr);
            con.Open();
            string sql = "select *from StudentInfo where stu_name=@name and password=@pwd";
            SqlParameter[] pars =
                {
                new SqlParameter("@name",name),
                 new SqlParameter("@pwd",pwd)
            };
            SqlCommand cmd = new SqlCommand(sql, con);
            cmd.Parameters.AddRange(pars);
            SqlDataReader sdr = cmd.ExecuteReader();
            if (sdr.Read())
            {
                Session["name"] = name;
                Response.Redirect("WebForm3.aspx");
                Literal1.Text = "登录成功";

            }
            else
            {
                Literal1.Text = "账户或者密码错误！！";
            }

        }
    }
}